Solution Engineer, DSS, Cyber Practice

Elevate your career with MANTECH International Corporation! Join a dynamic team dedicated to national security through cutting‑edge technology. Since 1968, MANTECH has led in delivering advanced solutions to government intelligence, the Department of Defense, and Federal Civilian sectors. Dive into innovation in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Your journey to impactful work and rapid growth starts now—be extraordinary at MANTECH!

MANTECH seeks a Solutions Engineer – Cyber Practice – Defense & Space to join our team in Herndon, VA (Hybrid).

The Solutions Engineer – Cyber Practice – Defense & Space will serve as the primary technical architect and representative of our growing Cyber Practice across Department of War (DoW) and federal space accounts. Operating at the tip of the spear, this high‑autonomy technical leader will shape the technical vision on supported proposals, programs, and customer engagements, scoping and designing end‑to‑end cyber solutions even when full requirements are undefined.

Responsibilities include but are not limited to:

• Own the overarching cyber architecture for major RFIs, RFPs, and proactive capture efforts across DoW and Federal Space accounts, translating ambiguous customer needs into actionable, differentiated technical approaches.
• Act as the lead technical cyber voice on proposal teams, collaborating with Capture Managers, Business Development leads, and executive leadership to shape capture strategy.
• Partner with Cyber Practice SMEs to integrate specialized capabilities—such as defensive cyber operations, cryptographic resilience, zero trust, and ICAM—into a unified solution vision.
• Draft, review, and finalize technical proposal volumes, whitepapers, Work Breakdown Structures (WBS), and basis of estimates (BOEs).
• Command technical color team reviews (Pink, Red, Green), defending technical choices and refining the solution narrative throughout the capture lifecycle.
• Utilize modern tools and AI‑assisted development practices to rapidly mock up high‑level architectures, functional concepts, or proofs‑of‑concept to validate proposal strategies.
• Rapidly develop technical demonstrations and proofs‑of‑concept (PoCs) as a hands‑on builder on occasion to validate proposed architectures.

Minimum Qualifications:

• Bachelor’s degree in Computer Science, Engineering, Cybersecurity, or a related technical field (or equivalent experience).
• 10+ years of experience in solutions engineering, systems architecture, or technical pre‑sales within government contracting.
• Practical, hands‑on experience building working software prototypes, technical mockups, or scripts to support pre‑sales or proposal engineering efforts.
• Proven track record leading technical solutioning for complex RFIs/RFPs in the Department of War (DoW), Intelligence Community (IC), or Federal Space/Civilian markets.
• Demonstrated capability to navigate ambiguous requirements, take command of technical strategy, and orchestrate cross‑functional SME teams.
• Strong written and verbal communication skills with demonstrated ability to translate complex technical concepts into mission‑focused proposal volumes.

Preferred Qualifications:

• Experience developing Work Breakdown Structures (WBS), staffing models, and technical pricing strategies for government bids.
• Broad conceptual understanding across cyber security domains, including NIST frameworks, Zero Trust Architecture, defensive operations, and security engineering in classified environments.
• Familiarity with modern AI‑assisted tools (e.g., GitHub Copilot, Cursor) to accelerate technical modeling, workflow generation, or rapid concept validation.

Clearance Requirements:

• Must have a current/active TS/SCI clearance

Physical Requirements:

• Constantly operates a computer and other productivity machinery.
• Must be able to remain in a stationary position for prolonged periods.
• Travel may be required to support client meetings, technical demonstrations, or proposal efforts.

The projected compensation range for this position is $179,300.00-$318,400.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short‑term and long‑term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation. If you need a reasonable accommodation to apply for a position with MANTECH, please email us at View email address on click.appcast.io and provide your name and contact information.